Photographic-plate holder



(No Model.)

J. THORPE.

PHOTOGRAPHIG PLATE HOLDER.

Patented Oct. 8, 1889.

a Q 4 Q WITNESSES:

ATTORNEY N. PETERS. Phem-mh m nn Wzmmgmn. u. c.

UNITED STATES PATENT OFFICE.

JOSEPH THORPE, or JERSEY CITY, NEW JERSEY, ASSIGNOR or ONE-HALE TO CARLP. STIRN, or BROOKLYN, New YORK.

PHOTOGRAPHlC-PLATE HOLDER.

SPECIFICATION forming part of Letters Patent No. 412,682, dated October8, 1889. Application filed January 17, 1889. Serial No. 296,587. (Nomodel.)

To all whom it'may concern:

Be it known thatI, JOSEPH THORPE, a subj ect of the Queen of GreatBritain, residing at Jersey City, in the county of Hudson and State ofNew Jersey, have invented new and useful Improvements inPhotographic-Plate Holders, of which the following is a specification.

This invention relates to an improvement in photographic-plate holders,and by means of this invention one plate can be rapidly exposed afteranother, as set forth in the following specification and claims andillustrated in the accompanying drawings, in which Figure 1 is asectional elevation of a plateholder, the section being taken along line00 00,

Fig. 5. Fig. 2 is a section along the line yy, Fig. 1. Fig. 3 is a Viewsimilar to Fig. 1, with parts in a different position than in Fig. 1.Fig. 4 is a section along the line .2 a, Fig. 3. Fig. 5 is a rear viewof Fig. 1, the back being removed. Fig. 6 is a view similar to Fig. 5,with parts in a different position. Fig. 7 is a face view of Fig. 1, thecover being removed.

Similar letters indicate corresponding parts.

In the drawings, the letter A indicates the walls or frame of theplate-holder. A partition B divides the holder into thephotographchamber 0 and the receivingchamber D. hen a sensitive plate Ehas been exposed in the photograph chamber, said plate is moved to thereceiving-chamber. The With drawal of the slide F exposes a sensitiveplate. Said slide F is suitably mounted in the cover G of the holder.The movements of the slide or carrier H transfer the plates from thephotograph to the receiving chamber. The back I is provided with springsK, which press on the sensitive-plates, so as to hold the plates towardthe front of the holder. .The back I can be readily removed by movingthe latches L out of engagement with the eyes M on the frame A, when theback is free to be taken out of its place. The slide or carrier H has alifter or shoulders N, which, as seen in Fig. I, hold the plate orplates E in the receiving-chamber D out of the way of the plate E thatis about to move from the photograpl1-cl1amber G into the chamber D.Said chamber D also has lifters O, the springs P of which tend to forcethe lifters 0 through suitable openings in the chamber D.

' The device operates as follows: The parts being in the position shownin Fig. 1, the front plate E in the chamber 0 moves into a cutoutportion or opening in the slide H, said opening being large enough forthe passage of the plate E. The plate E is prevented from falling out ofthe apparatus by the rim Q, Fig. 5, at the front of the chamber C. Whenthe plate E has been suitably exposed, the slide H is moved to theposition shown in Fig. 3, thus drawing the plate E, which has beenexposed, from the chamber 0, through the passage R in the partition 13,into the receiving-chamber D. The lifters O, which before were pressedback by the full portion of the slide H, are now pressed by theirsprings P through the cut'out portion of the slide H and move the platesE to the position shown in Fig. 3, so that said plates will be out ofthe way of the slide H when said slide is moved back. to the positionshown in Fig. 1. WVhen in the position shown in Fig. 1, the full portion of slide H has again pressed the lifters 0 back out of the chamberD. By reciprocating the slide H one plate after another can thus bebrought from the photograph-cl1amber G into the receiving ehamber D. Thestops S. on the slides F H can be engaged by the springs T to preventthe slides from accident ally moving. W hen the slides F H are moved outof the holder, the springs T snap tothe side of the stops S which isnearest the frame A, and will remain on this side when the slides arepressed back into the frame, thus inclicating that the slides have beenactuated.

That I claim as new, and desire to secure by Letters Patent, is

1. The combination, with a plate-holder having a photographic chamberand a receiving-chamber for the reception of the plates, of a slidehaving a recess of a size sufficientto receive a plate in thephotographchamber, said slide, by its outward-sliding movement, drawingthe plate in its said recess into the receiving chamber, and liftersadapted to extend through the slide into the receiving-chamber and liftthe plate from the recess of said slide, substantially as described. 100

' .slideand ift tthe piat from the xeces the e f,

2. The combination, in a plate-holder having a photograph-chamber and areceivingchamber, both chambers being adapted for the reception ofphotographic plates, of a slide or carrier adapted to carry a plate fromone chamber to the other, and spring-lifters for holding the plates inthe receiving-chamber? out of the way of the arrier, said l fters beingoperated at suitable intervals by the movement of the carrier,substantially as described.

3. The combination, with a plate-holder having a photographic chamberand a receiving-chamber, of a slide having a recess which receives aplate in the photographic chamber, 1 said slide, by its outwandrslidi-ngmovement, drawingthe plate from the photographic chamber int the reeivingaehamhenand havg j cen t i s pletemeceiying race-ass, p i nglshelden, whi h h ts th elat si he eceiaingwhamhe ,as th sl de is m yedentire-r91, su stantially as desc ibed :4 The combina ion, wi h pla-holde having a phqtos anhiwhemher ands req iv- 1 ing-iehamh nn a-Slidehaving a recess which receiy a Platein th pbeteenenh whamber, saidslide, by itsi n and 'sn yement, draw ng the mm thephq qgwp tien embeinto i e eqeiwing eha-mhen, and having projecting shoulder ift the plaes in we 2 coining-chambe as the slide ,m aes en wardhand lifters{fidfiP-tQdfiQ pass throug the substantially 331 desc ibed.

5. The combination, with a plate-holder having a pho og ap i chamb rands r ing-chamber, each adapted to contain a series of independentplates, and a spring arranged in the photographic chamber for pressingthe plates therein toward the opening for exposure, of a slide having arecess .of'a size to receive within it ,a plate, and into which recessthe latter is pressed by the spring, said slide,

sliding movement drew said plate into the I e ymgiehanber sai slideseach heater:

2 step i t creas t e an ingaon th gam hol e tramssu stant a ly Awideseibed- In testimony whereof I have hereunto set ny 7 han andea in thpresence-m gav -subscribwitnesses.

roste s anemia Witnesses:

WIHJAM 1. mmursa

